· Get a Cloudy Nights T-Shirt · Submit a Review / Article Click here if you are having trouble logging into the forums Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> Classic Telescopes Previous   Index   Next   Threaded   Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | (show all) tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: tim53]       #5220664 - 05/13/12 05:52 PM Attachment (17 downloads) Edit   Reply   Quote Quick Reply   I do like the color scheme, though! Post Extras:       Dave M Postmaster Reged: 08/03/04 Loc: N.E.Ohio Re: Tinky Love!! [Re: tim53]       #5220706 - 05/13/12 06:23 PM Edit   Reply   Quote Quick Reply   Nice work Tim, Looks Great! Post Extras:       sgorton99 Carpal Tunnel Reged: 04/30/08 Loc: Wisconsin, Madison Re: Tinky Love!! [Re: Dave M]       #5220735 - 05/13/12 06:42 PM Edit   Reply   Quote Quick Reply   Quite awesome Tim, good job! Post Extras:       PiSigma Pooh-Bah Reged: 10/14/09 Loc: North Carolina Re: Tinky Love!! [Re: sgorton99]       #5221008 - 05/13/12 10:12 PM Edit   Reply   Quote Quick Reply   Beautiful Tim! It is wonderful to see this back in tip top condition. Excellent restoration. Post Extras:       Datapanic Carpal Tunnel Reged: 10/17/09 Loc: Tucson, Arizona Re: Tinky Love!! [Re: PiSigma]       #5221016 - 05/13/12 10:21 PM Edit   Reply   Quote Quick Reply   Awesome job, Tim! Looks like it's ready for first light to me! Post Extras:       Joe Cepleur Pooh-Bah Reged: 03/18/10 Loc: Dark North Woods Re: Tinky Love!! [Re: Datapanic]       #5221031 - 05/13/12 10:29 PM Edit   Reply   Quote Quick Reply   Tim, you are truly an inspiration to me as I struggle with the notorious salt-encrusted C8! Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: Joe Cepleur]       #5221065 - 05/13/12 10:42 PM Edit   Reply   Quote Quick Reply   We're. Bbqing for mothers day, so I'll have to scope out the collimation one evening this week. I'm heading to sw Utah Friday to get ready for the eclipse, but I don't think I'll bring Tinky. Post Extras:       Bill Griffith sage Reged: 08/12/09 Loc: Ca. Re: Tinky Love!! [Re: tim53]       #5221706 - 05/14/12 11:24 AM Edit   Reply   Quote Quick Reply   Great documentation of a restoration of a classic by a gentleman of renaissance character. IMHO, like them or not early C8's significantly changed amateur astronomy! I will use Tinky as a benchmark for S/N 31's appearance. This is a great forum!! Thanks All! Bill Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: Bill Griffith]       #5221804 - 05/14/12 12:22 PM Edit   Reply   Quote Quick Reply   I forgot something... The corrector cell wasn't painted on the inside, originally. This might have been to enable the corrector retaining ring to come off easily. The cell is anodized black under the paint. I suspect I'll need to fiddle with corrector orientation, so if I bugger the paint getting the ring out, I could strip it and repaint it, as I should have enough of the dark anthracite and plenty of the alsa clear. Post Extras:       BRisley Carpal Tunnel Reged: 09/04/06 Loc: SW Florida Re: Tinky Love!! [Re: tim53]       #5221924 - 05/14/12 01:30 PM Edit   Reply   Quote Quick Reply   Tim, Be careful! You want to make sure the corrector retaining ring has room to expand. On the older ones, it is Al, the newer ones plastic. I got mine too tight and had no play due to paint thickness and my corrector developed a radial crack. Make sure you have no paint on the edge of the ring, it won't be noticed and is not in the optical path! You should be able to freely rotate the ring when placed on top of the corrector. If you can't you're too tight! I would not put the alsa clear on the inside of the cell! Brian Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: BRisley]       #5222768 - 05/14/12 09:03 PM Edit   Reply   Quote Quick Reply   Brian: Yeah, I need to take the paint off the inside of the cell. The corrector has plenty of room inside the cell, as in addition to the cork or paper rings in front and behind it, it had 3 cork spacers 120 degrees apart from one another. -Tim. Post Extras:       Datapanic Carpal Tunnel Reged: 10/17/09 Loc: Tucson, Arizona Re: Tinky Love!! [Re: tim53]       #5222824 - 05/14/12 10:46 PM Edit   Reply   Quote Quick Reply   One thing that I kinda worry about is not using glue to keep the cell and corrector in place. Even though they fit snugly now, do you think that later, after temperature changes, that there's a chance they could get loose and fall out? Post Extras:       BRisley Carpal Tunnel Reged: 09/04/06 Loc: SW Florida Re: Tinky Love!! [Re: Datapanic]       #5222864 - 05/14/12 11:31 PM Edit   Reply   Quote Quick Reply   My problem wasn't space around the corrector, it was space around the retaining ring and possibly too tight of screws. The ring wanted to expand/contract but had no ability to do so. Corrector was well cushioned by cork spacers and had room to easily rotate. Just lightly tighten the screws on the retainer, just enough to hold it. Brian Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: Datapanic]       #5222882 - 05/14/12 11:37 PM Edit   Reply   Quote Quick Reply   Honestly, I think I'm going to have a devil of a time getting the corrector cell off again. It took a fair amount of squeezing with the clamp back and forth from one side to the other, to get it in place. But when I do get it out to test the collimation, I'll plan on removing the corrector and see if I can take the cell off - probably with the clamp but with the jaws reversed so it pushes rather than pulls. -Tim. Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: tim53]       #5223231 - 05/15/12 09:21 AM Edit   Reply   Quote Quick Reply   Hi Brian: When I put the ring in, I ran the screws in hand snug, then backed them all of about a half turn. I may have time tonight to fiddle with it. At the very least, I'll make sure the ring isn't squeezing the corrector. I'll also back the screws off enough to see if I can rotate the corrector without taking off the ring. -Tim. Post Extras:       seryddwr Innocent Bystander Reged: 02/19/10 Loc: I don't know, you tell me. Re: Tinky Love!! [Re: tim53]       #5223544 - 05/15/12 01:25 PM Edit   Reply   Quote Quick Reply   Tim, where in sw Utah? Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: seryddwr]       #5223706 - 05/15/12 02:56 PM Edit   Reply   Quote Quick Reply   Milford. Post Extras:       seryddwr Innocent Bystander Reged: 02/19/10 Loc: I don't know, you tell me. Re: Tinky Love!! [Re: tim53]       #5224107 - 05/15/12 08:08 PM Edit   Reply   Quote Quick Reply   That's pretty far north. Is that still in the path of "totality", annularity, or whatever? Edit: Just checked ma map, looks like it would be annular all the way to Fillmore, or beyond. Edited by seryddwr (05/15/12 08:14 PM) Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky Love!! [Re: seryddwr]       #5224385 - 05/15/12 11:26 PM Edit   Reply   Quote Quick Reply   Yeah, Milford isn't on the centerline, but in the annularity zone. I'm planning on watching from a stretch of Hwy 56 west of Cedar that falls right on the centerline for about 15 miles, so I can move out from under a cloud if need be. -Tim. Post Extras:       tim53 Postmaster Reged: 12/17/04 Loc: Highland Park, CA Re: Tinky does Saturn! [Re: tim53]       #5224541 - 05/16/12 01:51 AM Attachment (7 downloads) Edit   Reply   Quote Quick Reply   Hi all: I set up Tinky tonight to adjust the collimation and see how it does on Saturn. The seeing wasn't great, but it should have looked better than it did. So, while I got everything pretty close to concentric, I bet that I still need to rotate the corrector and/or the secondary. I've never taken the secondary out of the corrector, so I don't know what to expect there. Any pointers? Since the scope had been apart before I got it, and the Corrector and the tube were rotated at odd angles with respect to the cell and primary, I wouldn't be at all surprised if the secondary and corrector weren't oriented right. In fact, I expect they aren't oriented. Anyway, Saturn was soft and it wasn't all seeing, or didn't feel like it was. I have to work tomorrow, or I'd have set up the 1975 C-8, which I know has superb optics, to do a real time comparison. Anyway, it still looks good to look at, even in the dark! Post Extras:       Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | (show all) Previous   Index   Next   Threaded   Extra information 13 registered and 10 anonymous users are browsing this forum. 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